Image rotation

Details Image rotation Image rotation

1985-08-26

1987-10-27

Moore, David K.

Image analysis

Histogram processing

For setting a threshold

340727, 358140, G06K 932

Patent

active

047035153

ABSTRACT:
The present invention is concerned with bit map data and methods of conveying bit map data into and out of a band buffer and shift register to an image output terminal to provide either portrait or landscape printing during print time. In particular, for portrait printing; and 8 to 1 multiplexer selects one of 8 bits to send for each register scan. For landscape printing, the 8 bits are sent to a shift register and then all 8 bits are sent as part of the raster scan.

REFERENCES:
patent: 3898627 (1975-08-01), Hooker et al.
patent: 3976982 (1976-08-01), Eiselen
patent: 4000486 (1976-12-01), Schomburg
patent: 4203154 (1980-05-01), Lampson et al.
patent: 4271476 (1981-06-01), Lotspiech
patent: 4300206 (1981-11-01), Belleson et al.
patent: 4545069 (1985-10-01), Kermisch
patent: 4593407 (1986-06-01), Konishi et al.
IBM Technical Disclosure Bulletins, vol. 17, No. 10, Mar. 1975 & vol. 18, No. 8, Jan. 1976.
IEEE Transactions on Computers, Jul. 1972, titled "A Fast Computer Method for Matrix Transposing".

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